From 68d919d42053af99c5220d0469aa4b3de2ae1c55 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Beno=C3=AEt=20Th=C3=A9baudeau?= Date: Tue, 14 Aug 2012 05:01:21 +0000 Subject: [PATCH] mx5/6 timer: Round up tick_to_time() value MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Round up tick_to_time() value instead of truncating it. This avoids stopping waits instantly for low usec values, and this generally guarantees that the code always waits for at least the requested duration. Signed-off-by: Benoît Thébaudeau Cc: Stefano Babic Acked-by: Stefano Babic --- arch/arm/cpu/armv7/imx-common/timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/cpu/armv7/imx-common/timer.c b/arch/arm/cpu/armv7/imx-common/timer.c index 1645ff83f4..e2725e1a64 100644 --- a/arch/arm/cpu/armv7/imx-common/timer.c +++ b/arch/arm/cpu/armv7/imx-common/timer.c @@ -61,7 +61,7 @@ static inline unsigned long long tick_to_time(unsigned long long tick) static inline unsigned long long us_to_tick(unsigned long long usec) { - usec *= CLK_32KHZ; + usec = usec * CLK_32KHZ + 999999; do_div(usec, 1000000); return usec; -- 2.25.1